Drucker,Petere F. (1986). Innovation and entrepreneurship: Practice and principles. Affiliated East-West Press Pvt. Ltd.
استشهاد بنمط شيكاغوDrucker,Petere F. Innovation and Entrepreneurship: Practice and Principles. New Delhi: Affiliated East-West Press Pvt. Ltd, 1986.
MLA استشهادDrucker,Petere F. Innovation and Entrepreneurship: Practice and Principles. Affiliated East-West Press Pvt. Ltd, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.